CM05FD331FO3 Equivalent & Substitute Parts

Part Overview

The CM05FD331FO3 is a 330 pF mica capacitor rated for 500 V operation with radial through-hole mounting. This capacitor is classified as Active product status and serves general-purpose applications requiring high voltage mica dielectric performance. Alternative equivalent parts become necessary when evaluating RoHS compliance requirements, inventory availability, or when the specific series variant is unavailable from stock.

Substiute Parts

CM05FD331FO3

Cornell Dubilier Electronics (CDE)In Stock: 791CM05FD331FO3 Datasheet

Current PartRFQ

CD15FD331FO3F

Cornell Dubilier Electronics (CDE)In Stock: 3026CD15FD331FO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The CD15FD331FO3F qualifies as a parametric equivalent to CM05FD331FO3 based on the following critical electrical and mechanical parameters:

• Capacitance: 330 pF (identical)
• Tolerance: ±1% (identical)
• Voltage Rating: 500 V (identical)
• Dielectric Material: Mica (identical)
• Mounting Type: Through Hole Radial (identical)
• Lead Spacing: 0.232" (5.90mm) (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Package Dimensions: 0.469" L x 0.209" W, 0.390" Height (identical)

The substitution is valid for direct replacement in applications where the electrical performance and physical footprint are the governing selection criteria. Both parts maintain the same voltage class, capacitance value, and tolerance specification required for high-voltage circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both CM05FD331FO3 and CD15FD331FO3F are active products from Cornell Dubilier Electronics with identical electrical and mechanical specifications. The primary differentiation factors are regulatory compliance and inventory availability.

The CD15FD331FO3F is ROHS3 compliant, whereas the CM05FD331FO3 is non-compliant. Selection between these parts depends on end-product regulatory requirements. If RoHS compliance is required by design specification or market destination, CD15FD331FO3F is the appropriate selection. The CD15FD331FO3F also offers significantly higher inventory availability (3010 units versus 729 units), supporting longer production runs and reduced lead time risk.

Frequently Asked Questions (FAQ)

Q: Are CM05FD331FO3 and CD15FD331FO3F mechanically interchangeable? A: Yes. Both parts are identical in physical dimensions, lead spacing, and radial through-hole mounting configuration. No PCB layout modifications are required for substitution.

Q: What are the electrical differences between these parts? A: There are no electrical differences. Both parts deliver 330 pF capacitance at ±1% tolerance with 500 V rated voltage, identical operating temperature range (-55°C to 125°C), and mica dielectric composition.

Q: When should I choose CD15FD331FO3F over CM05FD331FO3? A: CD15FD331FO3F is the appropriate selection when ROHS3 compliance is mandated by design requirements or regulatory environment. Higher inventory availability also supports CD15FD331FO3F for time-sensitive production schedules.

Q: Can these parts be used in the same circuit board without design changes? A: Yes. Identical electrical ratings, lead spacing (0.232"/5.90mm), and overall dimensions permit direct substitution without circuit board redesign or layout modifications.

Q: What is the difference between the CM05 and CD15 series designations? A: The CM05 and CD15 are different series identifiers from Cornell Dubilier Electronics. Both series utilize mica dielectric and meet the same electrical specifications for this 330 pF 500 V application. Series designation reflects internal product categorization but does not affect functional compatibility.